SwissMetNet project
Over recent years, MeteoSwiss has modernised and expanded its ground-level measurement network. SwissMetNet now comprises about 260 automatic stations. These stations deliver a multitude of current data on weather and climate in Switzerland every ten minutes. The data are automatically transmitted to the MeteoSwiss central database, where various quality assurance checks are performed. The stations' measurement programs vary according to their respective purpose. Standard stations measure continuously temperature, humidity, atmospheric pressure, solar radiation and the amount of precipitation as well as the wind direction and speed.

How long does the sun shine? (MeteoSwiss)